Search results for "202"

Image-Evoked Affect and its Impact on Eeg-Based Biometrics

2019

Electroencephalography (EEG) signals provide a representation of the brain’s activity patterns and have been recently exploited for user identification and authentication due to their uniqueness and their robustness to interception and artificial replication. Nevertheless, such signals are commonly affected by the individual’s emotional state. In this work, we examine the use of images as stimulus for acquiring EEG signals and study whether the use of images that evoke similar emotional responses leads to higher identification accuracy compared to images that evoke different emotional responses. Results show that identification accuracy increases when the system is trained with EEG recordin…

ES1D: A Deep Network for EEG-Based Subject Identification

2017

Security systems are starting to meet new technologies and new machine learning techniques, and a variety of methods to identify individuals from physiological signals have been developed. In this paper, we present ESID, a deep learning approach to identify subjects from electroencephalogram (EEG) signals captured by using a low cost device. The system consists of a Convolutional Neural Network (CNN), which is fed with the power spectral density of different EEG recordings belonging to different individuals. The network is trained for a period of one million iterations, in order to learn features related to local patterns in the spectral domain of the original signal. The performance of the…

Towards a Security Competence of Software Developers

2020

Software growth has been explosive as people depend heavily on software on daily basis. Software development is a human-intensive effort, and developers' competence in software security is essential for secure software development. In addition, ubiquitous computing provides an added complexity to software security. Studies have treated security competences of software developers as a subsidiary of security engineers' competence instead of software engineers' competence, limiting the full knowledge of the security competences of software developers. This presents a crucial challenge for developers, educators, and users to maintain developers' competences in security. As a first step in pushi…

Finding Software Bugs in Embedded Devices

2021

AbstractThe goal of this chapter is to introduce the reader to the domain of bug discovery in embedded systems which are at the core of the Internet of Things. Embedded software has a number of particularities which makes it slightly different to general purpose software. In particular, embedded devices are more exposed to software attacks but have lower defense levels and are often left unattended. At the same time, analyzing their security is more difficult because they are very “opaque”, while the execution of custom and embedded software is often entangled with the hardware and peripherals. These differences have an impact on our ability to find software bugs in such systems. This chapt…

Escala de percepción ante crisis y pandemias : desarrollo y validación de una escala pedagógica

2021

Objetivos: Abordar la metodología de estudio con respecto a epidemia/pandemia requiere involucrar pensamiento complejo frente a los retos que denota esta situación. El objetivo de este estudio es validar un cuestionario de percepción y creencias dirigido a estudiantes de medicina y enfermería sobre el uso del cine ante la complejidad de un evento pandémico, con el propósito de potenciar las estrategias de enseñanza. Metodología: Se encuestó a 131 estudiantes. La evaluación de la confiabilidad se realizó a través del análisis de consistencia interna. La valoración de los 19 ítems se evaluó mediante análisis de correlación de Pearson y la validez de constructo mediante análisis factorial expl…

What is science without replication?

2016

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Stakeholder Contradictions in Early Stages of eHealth Efforts

2017

Anästhesie bei Patienten mit Porphyrie

2019

Die Porphyrien sind eine Gruppe vorwiegend hereditarer Stoffwechselstorungen der Hambiosynthese. Die Betreuung eines Patienten mit akuter Porphyrie ist eine interdisziplinare Herausforderung, bei der die Anasthesie eine koordinierende Funktion erfullt. Da es fur die Porphyrien bislang keine kausale Therapie gibt, richtet sich das Vorgehen im akuten Schub nach dem klinischen Bild. Im anasthesiologischen Umfeld ist insbesondere auf die Verwendung „sicherer“ Medikamente zu achten!

Schmerzanamnese und Verhaltensanalyse

2017

In diesem Beitrag werden wir auf Voraussetzungen und Besonderheiten eingehen, die bei der psychologischen Anamnese von Patienten mit chronischen Schmerzen wichtig sind. Ausgehend von unseren eigenen Erfahrungen schlagen wir – nach einer kurzen theoretischen Einfuhrung – Strukturierungshilfen vor, geben Hinweise auf typische Hurden und Probleme und gehen auf mogliche weitere Konsequenzen fur die Patienten ein. Unsere Absicht ist es, vor allem praktische Hilfen und Hinweise sowie eine praxisnahe Anleitung mit beispielhaften Gesprachssequenzen und Vorschlagen zur Problemlosung zu geben.

Multimodal analgesia and regional anaesthesia

2017

Multimodal analgesia provides quality analgesia, with fewer side effects due to the use of combined analgesics or analgesic techniques. Regional anaesthesia plays a fundamental role in achieving this goal. The different techniques of regional anaesthesia that include both peripheral and central blocks in either a single dose or in continuous infusion help to modulate the nociceptive stimuli that access the central level. The emergence of the ultrasound as an effective system to perform regional anaesthesia techniques has allowed the development of new regional anaesthesia techniques that formerly could not be carried out since only neurostimulation or skin references were used. It is essent…